Commit a9c60e9f9a23e78d0d2aefca1f125ee4f715a9ee
2017-09-28T19:06:39
Vulkan: Allow for multiple frames in-flight. This should give us the ability to send off more than one frame to the presentation engine at once. Instead of using a single pair of Semaphores to lock each surface, we make a Semaphore pair per Swapchain image. BUG=angleproject:1898 Change-Id: I9e833ed9969a79617d0a8968b0d5a25c27139e87 Reviewed-on: https://chromium-review.googlesource.com/672149 Commit-Queue: Jamie Madill <jmadill@chromium.org> Reviewed-by: Frank Henigman <fjhenigman@chromium.org>